I am not certain who will win the NBA's Rookie of the Year award, but I can predict with nearly 100 percent certainty that the winner will be a point guard. The top three contenders--Sacramento's Tyreke Evans*, Golden State's Stephen Curry and Milwaukee's Brandon Jennings are all lead guards, while New Orleans' Darren Collison and Denver's Ty Lawson are also among the top six rookies in the WARP, a group which includes only one non-point guard interloper (San Antonio's DeJuan Blair).

That doesn't even mention Dallas' Rodrigue Beaubois, who dropped 40 points on the Warriors last weekend; Philadelphia's Jrue Holiday, who is starting despite being the league's youngest player; and Minnesota's Johnny Flynn, who has had an uneven rookie season after being selected sixth overall last June. The embarrassment of riches in this year's crop of rookie point guards certainly seems unusual, but how does it compare to the best of its predecessors?

Conveniently, the numbers back up the subjective assessment: This year's rookies have put up the highest combined Wins Above Replacement Player for any group of rookie point guards going back through 1979-80. The top five:

Really, it's not even close. With a couple of weeks left in the season, the difference between the 2009-10 rookie point guards and the next best group (1999-00, when Steve Francis was co-Rookie of the Year, Andre Miller was a solid starter and Baron Davis also a significant contributor) is larger than the gap between second place and fifth place.

There are a few different ways to put up a high WARP total, which is why I included the other information about each class. For example, 2005-06 wasn't so much a great year for rookie point guards as it was a great year for Paul, whose 16.0 WARP are best among players in this group (Magic Johnson, at 14.6, is second). What is truly remarkable about this year's group is the quantity as much as quality. The trinity of Evans, Curry and Jennings all are above 4.5 WARP. The only other class that can compare is 1989-90, when Tim Hardaway, Sherman Douglas (rated the best of the group by WARP) and Pooh Richardson were also highly effective. Still, even that year didn't see anything like this season's second tier of rookie point guards; Collison is also above 3.0 WARP and Lawson (sitting at 2.9) could easily reach that mark.

The success of this year's rookie point guards has made me question how much the rules reinterpretations limiting contact on the perimeter have made it easier for young lead guards to step into the NBA and play well from day one. The evidence on this point, I would say, is somewhat mixed here. Whoever wins Rookie of the Year will be the third point guard to do so since 2005-06, joining Paul and Derrick Rose, as many as won the trophy between 1988-89 and 2004-05 (Jason Kidd, Damon Stoudamire and Allen Iverson).

At the same time, there was nothing special about the 2006-07 and 2007-08 groups of rookie point guards. Both of them rank in the bottom 10 rookie classes of the last three decades; in 2007-08 the best rookie point was Ramon Sessions, who spent most of the season in the D-League and appeared in just 17 total games for the Milwaukee Bucks.

The explanation for why this year in particular has been so good for rookie point guards may end up simply being that so many of them just happening to end up in the same draft class. Collison and Lawson both had opportunities to leave before they did, which would have made this year's group slightly less historic. At the same time, Evans, Holiday and Jennings going to the NBA one year out of high school is part of the reason that next season is unlikely to have much rookie point guard depth beyond John Wall. No other player listed as a point appears in DraftExpress' most recent first-round mock draft. Wall's Kentucky teammate Eric Bledsoe could be a lottery pick if he decides to declare, but his college numbers suggest a lengthy learning curve.

Of course, fate hasn't entirely smiled on this year's group of rookie point guards, seeing as the second of them drafted last June (Spaniard Ricky Rubio) opted to continue playing overseas rather than join the Timberwolves. Who knows what Rubio might have added to the rookie class, but even without him it is an unprecedented collection of point guard talent.

* For our purposes, please no discussion of whether Evans is "actually" a point guard. The technical note here is that the my database does not include positions, so I searched for players 6'2" and shorter or for those with Pass ratings greater than 2.0. This captured every point guard as well as a couple of shooting guards who were good at passing (Joe Dumars and Kendall Gill, for two). None was successful enough to throw things off. Anyway, Evans qualifies by this standard (his Pass rating is better than that of Oklahoma City's Russell Westbrook last year, for one) but Holiday technically just missed the cut and is not included in the WARP total listed above.